draw_file_dialog = function()
	-- border
	App.color{r=0.6, g=0.7, b=0.6}
	love.graphics.rectangle('line',
		Menu_left+5,
		Menu_top+5,
		Safe_width-Menu_left-10,
		Safe_height-Menu_top-10,
		5,5)
	-- ok/cancel buttons (but with wider names)
	local r = Safe_width-10
	r = right_justified_button('cancel', r, Menu_top+5+3, function()
		reset_file_dialog_state()
	end)
	r = right_justified_button('submit', r, Menu_top+5+3, function()
		File_dialog_callback(File_dialog_input_text)
		reset_file_dialog_state()
	end)
	File_dialog_input_right_margin = r
	-- input
	draw_file_dialog_input()
	-- filtered files
	App.color(Menu_background)
	love.graphics.rectangle('fill',
		Menu_left+5,
		Menu_bottom+5,
		Safe_width-Menu_left-10,
		Safe_height-Menu_bottom-10,
		5,5)
	if Directory_contents == nil then
		-- on the first frame after dialog is enabled
		refresh_directory_contents()
	end
	local x, y = Menu_left+10, Menu_bottom+10
	for _,filename in ipairs(Directory_contents) do
		if filename:find(File_dialog_input_text) then
			local w = Font:getWidth(filename) + 10
			if x ~= Menu_left+10 and x+w > Safe_width-Menu_left-10 then
				x = Menu_left+10
				y = y+Line_height+10
				if y > Safe_height-Menu_bottom-10 then
					break
				end
			end
			styled_button(filename, x,y, function()
				File_dialog_callback(filename)
				reset_file_dialog_state()
			end)
			x = x+w+10
		end
	end
end